Lift4D: Harmonizing Single-View 3D Estimation for 4D Reconstruction In-the-Wild

103 points by ilreb 9 hours ago on hackernews | 11 comments

darepublic | 8 hours ago

I'm sorry but this just reminds me of this tng episode that inspired me as a teen https://www.youtube.com/watch?v=4Faiu360W7Q

hyperific | 5 hours ago

Absolutely. Reminds me of the braindance sequences from Cyberpunk 2077

https://youtu.be/TV0ZUv4CMJ8?si=53etD-IUhsQkPpHt&t=1m41s

poly2it | 7 hours ago

This is insanely promising. What a time to be alive!

Joel_Mckay | 7 hours ago

Two Minute papers fan? fun YT channel =3

tamimio | 7 hours ago

Cool, so now when the swarm drones come after you, they can reconstruct the video on the fly from that single CCTV shot taken by flock, and pinpoint your location from the aggregated data by plantir!

bensmoif | 6 hours ago

Really interesting, and a link to your GitHub with a "code coming soon". Please get us the tool already!

christianh | 5 hours ago

Looks cool. How’s it different from https://github.com/gaomingqi/sam-body4d ? My guess: Is sam-body4d focused on temporally consistent body reconstruction into an MHR model, and Lift4D creates the full scene and a model of the tracked object (that doesn’t need to be a human). I may be way off, but a comparison would help me!

fraywing | 2 hours ago

wondering how accurate the extrapolated distances are? Like the Rhino and the tree -- I wonder if the approximation could be useful in something like forensics from a security video?
> I wonder if the approximation could be useful in something like forensics from a security video?

No. It's just some plausible thing the AI made up. It's literally like asking an LLM to generate evidence of a crime based on the prompt you presented.

There are plenty of cool use cases, just not forensics.

Enemy of the State predicted this: https://www.youtube.com/watch?v=3EwZQddc3kY&t=11s

It's only a matter of time before it's in use by law enforcement: https://news.ycombinator.com/item?id=48520807

I hope no court ever accepts AI generated evidence.